ZIRAL 61
Bonded alumina-zirconia-silica (AZS) with 20% zirconia
ZIRAL 61 is recommended for all applications in feeder expendables, and for superstructures where high corrosion resistance is required.
Typical application
- tubes
- plungers
- stirrers
- rotors
- orifice rings
ZIRAL 61 is suitable for sodalime glassware, cosmetic glass, high-temperature glass and colored glass.
Chemical and physical properties
Typical chemical composition
Typical crystallographic analysis
Main phase:
- corundum
- monoclinic zirconia
Secondary phase:
- mullite
- silicate
Physical characteristics
| Description | International standards | British standards |
|---|---|---|
| Cold crushing strength | 50MPa | 7,252psi |
| Refractoriness under load 2 105Pa, 0.5% at |
1,650°C | 3,002°F |
| Coefficient of thermal expansion | 5 10-6K-1 | 2.8 10-6°F-1 |
| Thermal conductivity at 1,000°C | 2 W.m-1.K-1 | 13.9 BTU in hr-1ft-2°F-1 |
| Thermal shock resistance | medium | medium |
| Porosity | 17% | 17% |
| Typical bulk density | 3.15g/cm3 | 197pcf |
Storage
The bonded alumina-zirconia-silica (AZS) with 20% zirconia, ZIRAL 61 solution must be stored in a dry environment protected from weather conditions.
Expendables Catalog
Related products
333
Bonded alumina-zirconia-silica (AZS) with 10% zirconia
333 is adapted for most of the standard feeder expendable applications.
ZA33 LB
Bonded alumina-zirconia-silica (AZS) with 10% zirconia
ZA33 LB is a unique low-blistering material suitable for applications where seeding after starting up is a concern.
ZA33 HR
Bonded alumina-zirconia-silica (AZS) with 10% zirconia
ZA33 HR is dedicated to all applications where longer life and better thermal shock resistance is needed versus the standard 333 solution.
ZIRAL GC
Bonded alumina-zirconia-silica (AZS) with 20% zirconia
ZIRAL GC is recommended for glass contact application in feeder expendables where high corrosion resistance is required.
HR30
Bonded alumina-zirconia-silica (AZS) material with 30% zirconia
HR30 has been developed for high pull rate, high temperature color lines in tableware and cosmetic markets.
MICROTHERM
Feeder spout bowl insulation kit
The great efficiency of microporous insulation ensures optimized thermal performance during discharge from the spout.